Ore-sample machine



(No Model.)

' D. W. BRUNTON.

ORE SAMPLE MACHINE. No. 304,259. Patented Aug. 26, 1884.

IJIIMHW WITNESSES: I I INVENTOR 4/75; I fi wmkfi ATTORNEY N. Pains.FhoIo-Lflhogruphcr. Washmglml. n. c.

ll si'ran STATES PATENT Gretna.

DAVID \VILLIAMS BRUNTON, OF DENVER, COLORADO.-

ORE-SAMPLE MACHINE.

SPE'SIFICATION forming part of Letters Patent No. 304,259, dated August26, 1884.

Application filed May 9, 1884.

In aZZ whom it may concern.-

Be it known that I, DAVID WILLIAMs BRUNTON, of the city of Denver,county of Arapahoe, and State of Colorado, have invented a new anduseful Ore'Sampling Machine, of which the following is a specification,in which reference is made to the accompanying drawings, making part ofthis specification, wherein Figure 1 is a front elevation of the machinehaving the housing cut away to display the vibrating spout. Fig. 2 is aside elevation of the same.

My invention relates to the class of machines which are used for thepurpose of taking from large lots of ores small samples which willcorrectly represent the whole.

Heretofore all attempts at mechanical'sampling have been made upon oneprinciple viz., by dividing or cutting out from a falling stream of oreby means of narrow spouts, dividing flanges, or traveling buckets asmall part of said ore. All of these devices have proved unreliable andunsatisfactory from the fact that the dividing-edges of the spouts,flanges, or buckets would soon become obstructed by sack-strin gs,chips, and soft clayey ores, thereby rendering the division of thestream inaccurate. 'Even if these objections did not occur correctsamples could not be obtained, as the system itself is wholly fault-y.In either a vertical or inclined spouta falling stream of ore is neverentirely homogeneous in all its parts, there being a constant tendencyto a greater proportion of coarse rapidlytraveling particles in thecenter of thestream and an excess of the finer slower-moving particleson the edges; consequently no part of the stream would exactly representthe average of the whole. Again, when intercepting-buckets are used thecoarse particles often rebound from the buckets into the rejected ore,thus rendering the sample wholly inaccurate. My invention obviates allof these defects by deflecting the entire stream of ore alternately tothe right and left into two separate portions, the relative proportionsof these two divisions to each other being determined by the differencein time between the deflections to the right and the deflections (Nomodel.)

reduce to a minimum the necessary travel of the deflecting-chute A. Thischute A is pivoted upon the rock-shaft K, and when it is deflected tothe right the entire stream of ore is thrown into E, and when it isdeflected to the left the entire stream is thrown into D. The deflectionis caused by the movement-of the I crank 0, receiving its motion fromthe drivingbar I, and connected with it by the pitman J. The driving-barI receives its motion from the pins L in the face of the revolving wheelH, which is'driven by the pulley G, receiving motion from the belt M orany other suitable driving device. The face of the wheel H is perforatedby two rows of holes, the distance between the two rows being the sameas the necessary movement of the crank 0. Into these holes are inserteda number of pins, L, held in place by jam-nuts on the interior of thewheel-face. Preferably twenty holes are bored in each row and eighteenpins are employed, each hole or pin representing five per cent. of thetime necessary to completea revolution of the wheel. N ow, if fifty percent. of the pins are placed in the right-hand row of holes and fiftyper cent in the left, then the revolution of the wheel H, carrying thepins L through the guides N N on the driving-bar I, will hold thedeflecting-chute A on the right during one-half of the revolution, and011 the left during the other half, thus dividing the f stream into twoequal portions.- If twenty per cent. of pins are placed in theright-hand row and eighty per cent. in the left, then thedeflecting-chute A will be held on the right during one-fifth of arevolution, and on the left on the face of wheel H in two rows and thetion upon the sliding bar I, substantially as guides N N attacheddirectly to the pitman without the intervention of drive-bar I withoutdeparting from the spirit of my invention.

WVhat I'claim, and desire to secure by Letters Patent, is-

1. A rotating wheel, H, provided with a double row of holes in its faceand a set of movable pins or their equivalent, for the purpose of actingupon the guides N N and producing a variable, irregular, intermittent1110- set forth.

2. In an ore-sampling machine, a vibrating I5 spout, A, and a wheel ordisk, H, provided with a series of pins, in combination with guides N N,and connecting devices between the guides'and spout, for the purpose setforth.

DAVID WVILLIAMS BRUN TON. Witnesses:

CAMPBELL FORD, DAVID G. MILLER.

